.mca file: how to open it on Windows

2 Windows apps register the .mca extension. Install one of them to open the file with a double-click.

About the format

Format

Common Interface File

PRONOM identifier

fmt/1871

Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).

• 
  NBTExplorer

  A graphical NBT editor for all Minecraft NBT data sources.

  Open source 2.8.0.0 ★ 3.1K
• 
  MyuneMusic

  一个基于 Flutter (Dart) 实现的简易本地音乐播放器。

  Open source 0.9.5 ★ 497

Related guide: Change the default app for a file type in Windows